A method for encoding and storing digital data, which include a plurality of real values, in a signal processing unit of a radar sensor. In the method, at least one real value r in an exponential representation in the form r=m·b−k is stored, where m is a digital mantissa having a length p, b is a base, and k is a positive number that is encoded as a digital number having a length q. The values r for the compressed storage are transformed into an exponential representation in the form r=m*·b−f(k), where m* is the mantissa and f is a function of k that is selected from multiple functions, and the selection of function f takes place based on a value distribution of the values to be stored.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The method as recited in claim 1, wherein b is a power of two.
3. The method as recited in claim 1, wherein an exponential representation with b>2 is used for the compressed storage of the at least one value r.
4. The method as recited in claim 1, wherein the multiple functions from which the function f is selected are stored in advance in the form of value tables.
5. The method as recited in claim 1, wherein the selection of the function f is varied during operation of the radar sensor as a function of the known data structure of the values to be stored.
6. The method as recited in claim 1, wherein values from the selected function f are generated during operation of the radar sensor as a function of a data structure of the values to be stored.
7. The method as recited in claim 1, wherein parameters and/or functions that are used for the compresses storage are determined based on a statistical analysis of the values to be stored.
8. The method as recited in claim 1, wherein a complex number is represented by a magnitude and a phase, and the exponential representation for the compressed storage is used for the magnitude.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
August 27, 2020
February 14, 2023
Browse 5M+ US patents with plain-English claim translations and AI-generated analysis.